Automobile.



R. P. & W. S. THOMPSON.

AUTOMOBILE.

APPLICATION FILED 0GT.10,1912.

2 SHEETS-SHEET 1.

Patented Sept. 9,

R. P. & W. S. THOMPSON. AUTOMOBILE.

APYLIGATION FILED 0OT.10, 1912.

1,072,791.. Patented Sept. 9, 1913.

2 sHEETQ-SHEET 2.

4. Sum ran-ONCE.

THOMPSON AND WILLIAM S; THOMISON, F LEIPSIC, OHIO, ASSIGNORS 0F ONE-THIRD '10 OLIVER- Y. EDWARDS, O1? 'LEIPSIC, OHIO.

' AUTOMOBILE.

s mmation of Letters iat'enh Application filed October 10, 1912; Serial 110.. 724,919. v 7

T0 all whbm, it-may concern Be it known that we, RALPH P.-THOM.P- son and-WILLIAM S. THoMrsoN, citizens of the United States, residing at. Leipsic,

countyof Putnam, and State of Ohio, have invented certain new and useful Improvements in Automobiles, of which the following isa specification.

Our invention relates to pension for automobiles.

The objectof our invention istoprovide efficient means V for absorbing shocks to the road wheels, thereby making the car more easy riding. v A further-object is -to separate the spring element into sets of members, each set acting in series, but in which a diiference'exists between the members of eaclrset in thc time of compression and recoil, for the purpose of causing the spring movement. to have the nature of a series of pulsations, out

the spring susof synchronism with each other, and-there- .taching the suspension to the rear axle. The

gether with devices which render the mechanism eflicient and durable.

In the accompanying drawings, which form a part of these specifications, Figure 1 shows the front view of an automobile equipped with our springv suspension. Fig. 2 is a perspective in outline of the end of the leaf spring, together wit-h the sliding hanger and a portion of the axle. Fig. 3 is a section in detail of the spring hanger, its slide, its supporting spring, and also showing the method of its attachment to the axle. Fig. 4 is a detail in perspective, of the rear spring suspension.

In Fig. 1 the front cross spring A is attached at either end by means of the link B and B to the spring hangers C and C. The guides D and D are bolted to the axle E, and extend upward through the hangers C and C, and terminate in a suitable stop for limiting the upward movement of the hangof its downward movement.

The. bearing washer F also serves as a support for. the. coiled spring G. A

Sliding collar Hirests upon the top of the spring 1 W thin the hanger G. The main portion of the hanger: C is cylindrical in form and adaptedto inclose the springGL The guide D extends through anopeningin the top of the hanger G, -and. is provided with a suitable stop for confining the hanger C within the proper limit ofits upward move-- enent. The lower-end of the collar H, upon whichthe hanger G rest-s, is adapted to come in contact withthe washer F in con fining the hanger G within the proper limit A lug I, Fig. 3, on the hanger G isadapted to support the end of-the spring A. Fig. 2 shows link B supporting the spring A, a swinging movement of the link B actingto compensate for the elongation of the leaf spring under pressure.

Fig. 4'shows 1n detail the method of atguide D' is attached to the axle flange J, which brings the guide D close to the rear wheel, thus permitting the use of the great-- est possible length of leaf spring K within -PatentedSept.9,1913.

sorbed more rapidly by the quick acting coiled spring than by the'slow acting friction restrained leaf spring. The result is that shock to the road wheel is first absorbed by the coiled spring, and therefrom is transmitted to the-body of the car and the occupants through' the slow acting leaf spring. As the compression and recoil of the leaf spring is not synchronous with that of the coiled spring the recoil of the coiled spring begins to take place before the full effect of shock to the road wheel can be transmitted through the leaf spring to the body of the car. This see-sawing action, as it were, between the quick acting coiled spring and the slow acting leaf spring causes a large portion of the eflt'ect from vibration to be nullitaking place simul- Having thus fully described our inven tion we desire to secure Letters Patent upon the following claims:

1. In automobile construction, thecombl-v nation of a non-rotating axle for the ground wheels, of pins or slides attached to and lap-Q wardly projecting from said axle, sliding. members for said upwardly pro ectlng plns or slides, and a coiled spring interposed between the axle and the sliding member, leaf springs arranged-transversely-of the car and above the axle and attached at their middle portion to the chassis frame and linked at their outer ends to the sliding members.

2. In automobile construction, the combination with the axle oft-he ground wheels, of stems attached thereto and upwardly projeoting therefrom, the said stems acting as guides for the vertical movement of enlarged sleeves fitted through an opening in their top to said stems, coiled springs surrounding said stems, said coiled springs being inframe in their mid-lengt closed withinsaid sleeves and adapted to support their downward thrust, shoulders on said stems upon which said coiled sprin rest, and leaf springs supporting the chassis with their outer ends attached to said sleeves, all as substantially shown and described.

3. In automobile construction, wherein ends; of said axle,

stanchlons' being adapted to limit the end motion of the'leaf springs and thereby prevent side sway of the chassis frame, hangers for the-outer ends of said leaf springs, said hangers having a vertical movement and bein guided therein by. said stanchions, and coile springs interposed between said leaf spring hangers and said axle of the ground wheels. W

4. In an automobile, the combination with a leaf spring, a stationary guide. on the 'axle flange adjacent to the rear brake drum and a sliding hanger adapted to slide on the said stationary guide, a coiled spring adapted to yieldably support said hanger, the said hanger being adapted to carry the end of the leaf spring. RALPH P. THOMPSON.

WILLIAM S. THOMPSON.- Witnesses: I JoHN SHARP,

ROY DAVID. 

